function validate() {
var used = []; // This array stores already used options
var rows = document.getElementById('myForm').getElementsByTagName('select');
for (var i = 0; i < rows.length; i++) {
var points = rows[i].value;
if (used[points]) {
// This value was already used
alert('Please choose a different value.');
rows[i].focus();
return false;
} else {
// This value was not used before; mark it as used now
used[points] = true;
}
}
return true;
}
你使用jQuery或类似的图书馆吗? – arthurprs 2011-03-02 15:47:11
我没有使用任何库。该网站是纯ASP。但我可以用你的建议来做任何事情。 – ciscogen 2011-03-02 16:23:24